Archbold Biological Station
Biennial Report 1995-1996

P.O. Box 2057 Lake Placid, Florida 33862 USA
863-465-2571 FAX: 863-699-1927

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Climate Information, Main Grounds Weather Station

Research Assistant: Nancy D. Deyrup

Weather data have been collected at the Archbold Biological Station site for 65 years. During 1932–41, when the site was the Roebling Red Hill Estate, Resident Engineer Alexander Blair tabulated daily records for rainfall, air temperature, relative humidity, and barometric pressure, adding wind direction and speed in 1934. In November 1941, Richard Archbold established the Main Grounds weather station and continued the task of tabulating daily rainfall, maximum and minimum air temperatures, and relative humidity. In January 1969, the National Weather Service's (NOAA) Lake Placid site was changed from the southeast shore of Lake June to the Station. Since then we have supplied data to NOAA for daily rainfall and maximum and minimum air temperatures (see fig., this page). In 1994 the Station received a 25–year institutional award from NOAA as a cooperating weather station, and the record continues. At the Main Grounds site, additional climatological parameters were gradually added: relative humidity (1969); soil temperatures at three different depths (1970); evaporation with associated anemometers, evaporation pan water temperatures, and solar radiation (1980); and wind speed and direction and barometric pressure (1982). The wind-speed gauge, originally mounted on the water tower (120 feet), was struck by lightning often; eventually the gauge was moved to a nearby, but lower, mast in 1995. Most of these data are also provided to the Southwest Florida Water Management District who supplied some of the equipment. During 1995-96, several agencies and private citizens used these data. For example, Florida Division of Forestry personnel used our wind direction information to help work through a problem involving a wildfire, fog, and a car accident.

Climate Information, ESE Weather Station

Land Manager: Kevin N. Main

In 1981, Environmental Science and Engineering Corp. (ESE), Gainesville, Florida, established an automated weather station at the Station's Main Grounds as part of a nationwide effort to sample rainfall and air quality. In 1987 the equipment was moved 5 miles south to the far southwest corner of the Station's Tract 31. The ESE equipment collected a variety of data, including rainfall, wind direction and speed, air temperature, and relative humidity, along with more specific air-quality parameters, using equipment with air filters that were sent to ESE for analysis. Rainfall was sampled for pH and conductivity. In 1994 ESE funding for the project was eliminated and much of the equipment was returned to ESE. In 1995 the remaining equipment was donated to the Station. This included one of two equipment shelters and the following weather sensors; relative humidity, wind direction and speed, air temperature (2), ultraviolet radiation, solar radiation, and barometric pressure. A datalogger records and stores hourly averages for each of these parameters. A Belfort rain gauge measures rainfall. All data except rainfall are available by modem link to the Station. Data from the site are stored electronically in spreadsheet format. Weather data are important for guiding research and management decisions. Relative humidity data (see fig. this page) are used to plan prescribed burns.



Lohrer, F.E. (Editor). 1998. Archbold Biological Station, Biennial Report 1995-1996. Archbold Biological Station, Lake Placid. 62 pp.
Archbold Biological Station, 1998 October.
Webmaster: Fred Lohrer.